Omron HBF-358-BW User Manual
Instruction Manual
Body Composition Monitor
Model HBF-358-BW
Max Weight 135kg
OMRON HEALTHCARE Co., Ltd.
53, Kunotsubo, Terado-cho, Muko, Kyoto, 617-0002 Japan
OMRON HEALTHCARE SINGAPORE PTE LTD.
438A Alexandra Road, #05-05/08, Alexandra Technopark Singapore 119967
www.omron-healthcare.com.sg
ON/OFF
Thank you for purchasing OMRON Body Composition Monitor.
Before using this unit for the first time, please be sure to read this Instruction Manual
carefully and use the unit safely and properly.
Please keep this Instruction Manual at hand all the time for future reference.
5334083-5A
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Before using the unit
HBF-358-BW
Notes on Safety
Body Composition Monitor
Please read instructions carefully before use, and keep this manual for future reference. Do not use this unit for
purposes other than described in this manual.
Contents
Before using the unit
Notes on Safety.................................................. 1
Useful Information ............................................. 2
Operating instructions
1. Know Your Unit ............................................. 4
2. Inserting and Replacing the Batteries ........ 4
3. Setting and Storing Personal Data .............. 5
Notes on Safety
Symbols and definitions are as follows:
Danger:
Warning:
Caution:
Improper use may cause danger resulting in death or serious injury.
Improper use may result in possible death or serious injury.
Improper use may result in injury or property damage.
4. Taking a Measurement ................................. 7
5. Measuring Weight Only...............................11
Care and maintenance
6. Error Displays ..............................................11
7. Troubleshooting.......................................... 12
8. How to Take Care of and Store the Unit.... 13
9. Technical Data............................................. 14
Danger:
• Never use this unit in combination with medical
electronic devices such as:
(1) Medical electronic implants such as pacemakers.
(2) Electronic life support systems such as an
artificial heart/lung.
(3) Portable electronic medical devices such as an
electrocardiograph.
This unit could cause these devices to malfunction,
posing a considerable health risk to users of these
devices.
Warning:
• Never start weight reduction or exercise therapy
without the instructions of a doctor or specialist.
• Do not use the unit on slippery surfaces, such as a
wet floor.
• Keep the unit out of the reach of young children.
• Do not jump onto the unit, or hop up and down on
the unit.
• Do not use this unit when your body and/or feet are
wet, such as after taking a bath.
• Stand on the main unit bare-footed. Attempting to
stand on it with socks on may cause you to slip and
result in injury.
• Do not step on the edge or display area of the main
unit.
• People with disabilities, or who are physically frail,
should always be assisted by another person when
using this unit. Use a handrail or so when stepping
on the unit.
• Do not use this unit to measure the body fat
percentage for people who is under 10 years or
above 81 years old.
• This unit can not display the visceral fat level for
people who is younger than 18 years old.
• Should battery fluid get into your eyes, rinse it with
plenty of clean water and consult a doctor
immediately.
Caution:
• This unit is intended for home use only. It is not
intended for professional use in hospitals or other
medical facilities. This unit does not support the
standards required for professional use.
• Do not disassemble, repair, or remodel the display
unit or the main unit.
• Do not use a cellular phone near the display unit or
the main unit.
• Take care when storing the display unit. Your
fingers may be trapped between the grip and the
main unit if you press it too strongly.
• Do not use batteries not specified for this unit. Do
not insert the batteries with the polarities in the
wrong direction.
• Replace worn batteries with new ones immediately.
• Do not dispose of batteries in fire.
• Should battery fluid get on your skin or clothing,
rinse it with plenty of clean water immediately.
• Remove the batteries from this unit when you are
not going to use it for a long period of time
(approximately three months or more).
• Do not use different types of batteries together.
• Do not use new and worn batteries together.
• Remove the display unit from main unit before
stepping on the unit. If you try to remove the display
unit while stepping on to the unit, you may lose your
balance and fall.
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Daily activities
Waking up
Breakfast
Lunch
Taking a bath or
eating dinner
Going to bed
Recommended time
Recommended time
Recommended time
Recommended time
2 hours
2 hours
2 hours
Before going to bed and about 2
hours or more after dinner or bath
Before lunch and about 2 hours or
more after breakfast
After waking up
In the afternoon about 2 hours or
more after lunch and before taking
a bath or eating dinner
Avoid measurement immediately
after eating or bathing.
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Useful Information
Principle of body composition calculation
Body fat has low electric conductivity
OMRON HBF-358-BW measures the body fat percentage by the Bioelectrical Impedance (BI) method. Muscles, blood
vessels and bones are body tissues with a high water content that conducts electricity easily. Body fat is tissue that has
little electric conductivity. The HBF-358-BW sends an extremely weak electrical current of 50 kHz and less than 500
through your body to determine the amount of fat tissue. This weak electrical current is not felt while operating the
HBF-358-BW.
In order for the scale to determine body composition, it uses the electrical impedance, along with your height,
weight, age and gender information to generate results based on OMRON’s data of body composition.
Measures the whole body to avoid the influence of fluctuations
During the course of a day, the amount of water in the body tends to shift to the lower limbs gradually. This is why
there is a tendency for the legs and ankles to swell in the evening or at night. The ratio of water in the upper body
and lower body is different in the morning and evening, and this means that the electrical impedance of the body
also varies. Since the HBF-358-BW uses electrodes for both hands and feet to take measurements, it can reduce
the influence of these fluctuations on measurement results.
Recommended measurement times
Understanding the normal changes in your body fat percentage can help prevent or reduce obesity. Being aware of
the times when the body fat percentages shift within your own daily schedule will assist you in obtaining an
accurate trending of your body fat. It is recommended to use this unit in the same environment and daily
circumstances. (See chart)
μ
A
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Avoid taking measurements under the following conditions
If a measurement is made under these physical conditions, the estimated body fat percentage may differ
significantly from the actual one because the water content in the body is changing.
Avoid taking measurements:
- immediately after vigorous exercise
Please wait for 2 hours or more
- after a bath or sauna
- after drinking alcohol
- after drinking lots of water
- after eating a meal
Sample Visceral Fat
(MRI image)
Sample Subcutaneous
Fat (MRI image)
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What is BMI (Body Mass Index)?
BMI uses the following simple formula to indicate the ratio between weight and height of a person.
BMI = weight (kg) / height (m) / height (m)
The OMRON HBF-358-BW uses the height information stored in your personal profile number or when entering
information in the Guest Mode to calculate your BMI classification.
If the fat level revealed by BMI is higher than the international standard, there is an increased likelihood of common
diseases. However, not all types of fat can be revealed by BMI.
What is RESTING METABOLISM?
Regardless of your activity level, a minimum level of energy is required to sustain the body’s everyday functions.
Resting metabolism, the amount of calories needed to supply the body with the minimum level of energy, differs
between individuals depending on variables such as age, weight, body composition, and energy expenditure.
What is BODY AGE?
Body age is based on your resting metabolism. Body age is calculated by using your weight and body fat
percentage to produce a guide to judge whether your body age is above or below the average for your actual age.
To know your body age is useful to improve your health condition.
What is Body Fat Percentage?
Body fat percentage refers to the amount of body fat mass in regards to the total body weight expressed as a
percentage.
Body fat percentage (%) = {Body fat mass (kg) / Body weight (kg)} × 100
Our device uses BI method to estimate your body fat percentage.
Depending on where fat is distributed in the body, it is classified as visceral fat or subcutaneous fat.
Useful Information
What is Visceral Fat Level?
Visceral fat = fat surrounding internal organs
Too much visceral fat is thought to be closely linked to increased levels of fat in the
bloodstream, which may lead to conditions such as high cholesterol, heart disease and
type 2 diabetes. In order to prevent or improve conditions of common diseases, it is
important to try and reduce visceral fat levels to an acceptable level. People with high
visceral fat levels tend to have large stomachs. However, this is not always the case and
high visceral fat levels can lead to metabolically obese. Metabolically obese (visceral
obesity with normal weight) represents fat levels that are higher than average, even if a
person’s weight is at or below the standard for their height.
What is Subcutaneous Fat?
Subcutaneous fat = fat below the skin
Subcutaneous fat not only accumulates around the stomach but also around the upper
arms, hips and thighs, and can cause a distortion of the body's proportions. Although not
directly linked to increased risk of disease, it is thought to increase pressure on the heart
and other complications. Subcutaneous fat is not displayed in this unit, but is included in
the body fat percentage.
The reason calculated results may differ from actual body fat percentage
The body fat percentage measured by this unit may significantly differ from the actual body fat percentage in
the following situations:
Elderly people / People with a fever / Body builders or highly trained athletes / Patients undergoing dialysis /
Patients with osteoporosis who have very low bone density / Children in growth stage / Pregnant women /
People with swelling
These differences may be related to changing ratios of body fluid and/or body composition.
3
ON/OFF
Grip Electrodes
Power Switch
Display
Cord
Display Unit Holder
USER Button
GUEST Button
SET/MODE Button
Up/Down Buttons
Foot Electrodes
Heel Electrodes
Max Weight 135kg
Display Unit
Main Unit (Measurement Platform)
Front View
Buttons
Ta b
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Operating instructions
1. Know Your Unit
2. Inserting and Replacing the Batteries
1. Open the battery cover on the back of
the main unit.
1)
Press the tab of the battery cover to
release it.
2) Pull it up as shown.
2. Install the batteries in correct polarity
as marked inside the battery
compartment.
3. Close the battery cover.
Battery Life and Replacement
When the low battery indicator ( ) appears,
replace all four batteries with new ones.
Items stored in memory are retained even if the
batteries are removed.
• Replace the batteries after turning off the power.
• Disposal of used batteries should be carried out
in accordance with the national regulations for
the disposal of batteries.
• Four AA batteries will last approximately 1 year
(when measurements are made four times a
day).
• Because the supplied batteries are for trial use
only, they may have a shorter life.
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